单项选择题

The navigation computer functions ______.

A．by means of a direction finder and a speed detector
B．basically on satellite signals and a map database
C．mainly through the reception of turn-by-turn directions
D．by using a screen to display satellite signals

<上一题目录下一题>

热门试题

单项选择题

Despite their varied designs, navigation computers used in cars ______.

A．are more or ness the same price
B．provide directions in much the same way
C．work on more or less the same principles
D．receive instructions from the same satellites

单项选择题

The navigation systems in cars like Lexus, BMW and Audi are mentioned to show ______.

A．the immaturity of the new technology
B．the superiority of the global positioning system
C．the cause of price fluctuations in car equipment
D．the different ways of providing guidance to the driver